question is answered now:
The ailerons are fully-extended, provided one aileron servocontrol is available on each side, when: - The ground spoilers are fully extended
- Flaps are not in clean CONF
- Pitch attitude is lower than 2.5 °
- Flying manually
- In normal law only.
Ref: FCOM/DSC/27/10/20/SPEED BRAKES AND GROUND SPOILERS